Air Quality in Ansan-si, South Korea

Partly Cloudy
23.2°C · 50.5% humidity
23.2°
Feels 23.2°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
59 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
57 7pm
57
57
45 10pm
48
51
53 1am
54
55
55 4am
56
56
56 7am
57
57
57 10am
57
57
57 1pm
57
57
57 4pm
57
57
Station readings 39h ago
AQI 57
PM2.5 14.8 µg/m³ · 39h ago
AD 728×90

Air Quality Index Trend

47h · 92 stn

Ansan-si's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions.

50.5%
Humidity
35.7 km/h
Wind WNW
1007.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
45
10.76 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Ansan-si?

Temperature & Precipitation

PM2.5 Trend

47h · 92 stations
PM2.510.76 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (59 stations within 25 km)
10.76
Median
10.98
Average
7.9
Low
15.9
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +5.6

What is the 7-day forecast for Ansan-si?

06-09
24.4° 21.4°
06-10
21.8° 15.3°
0.19 mm
06-11
27.2° 20.4°
06-12
25.4° 20.6°
0.06 mm
06-13
26.2° 23.6°
06-14
27.3° 19.1°
6.88 mm
06-15
27.1° 21.4°
Both models agree Avg diff: 3.5°C

Where are air quality stations near Ansan-si?

36
Ansan (안산시)
0.8 km PM2.5: 8.6 µg/m³
52
Ansan (안산시)
0.8 km PM2.5: 12.6 µg/m³
44
Ansan (안산시)
0.8 km PM2.5: 10.6 µg/m³
59
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 15.9 µg/m³
63
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 17.8 µg/m³
59
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 15.9 µg/m³
46
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 11.0 µg/m³
50
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 12.0 µg/m³
65
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 18.8 µg/m³
50
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 12.0 µg/m³

What cities are near Ansan-si?

43 Anyang-si 44 Uiwang 44 Gunpo 46 Hwaseong-si 47 Siheungdong 42 Suwon 49 Gwangmyeong 43 Incheon 46 Bucheon-si 43 Osan
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T13:40 UTC.